/**
 * Copyright (c) 2011 ~ 2013 Deepin, Inc.
 *               2011 ~ 2013 jouyouyun
 *
 * Author:      jouyouyun <jouyouwen717@gmail.com>
 * Maintainer:  jouyouyun <jouyouwen717@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 **/

package main

import (
	"fmt"
	"reflect"
)

func testInterger(value interface{}) {
	t := reflect.TypeOf(value)
	fmt.Println("type:", t)
	v := reflect.ValueOf(value).Elem()
	fmt.Println("value:", v.Int())

	b := v.CanSet()
	fmt.Println("CanSet:", b)
	if b {
		v.SetInt(int64(10))
	}
}

func testString(value interface{}) {
	fmt.Println("Type:", reflect.TypeOf(value))
	v := reflect.ValueOf(value).Elem()
	fmt.Println("Value:", v.String())

	b := v.CanSet()
	fmt.Println("CanSet:", b)
	if b {
		v.SetString("world")
	}
}

func testBytes(value interface{}) {
	fmt.Println("type:", reflect.TypeOf(value))
	v := reflect.ValueOf(value).Elem()
	fmt.Println("\tvalue:", v.Bytes())
        v.SetBytes([]byte{5,6,7,8})

	data := value.(*[]byte)
	for _, t := range *data {
		fmt.Println("\tdata:", t)
	}
}

func main() {
	var a = 5
	var str = "hello"
	var datas = []byte{1, 2, 3, 4}

	fmt.Printf("interger before test: %d\n", a)
	testInterger(&a)
	fmt.Printf("interger after test: %d\n", a)

	fmt.Printf("string before test: %s\n", str)
	testString(&str)
	fmt.Printf("string after test: %s\n", str)

	fmt.Println("bytes before test:", datas)
	testBytes(&datas)
	fmt.Println("bytes after test:\n", datas)
}
